Abstract

Light beams carrying orbital angular momentum (OAM) have led to stunning applications in various fields from quantum information to microscopy. We examine OAM from the recently observed high-harmonic generation (HHG) in semiconductor crystals. HHG from solids could be a valuable approach for integrated high-flux short-wavelength coherent light sources. First, we verify the transfer and conservation of the OAM in the strong-field regime of interaction from the generation laser to the harmonics. Secondly, we create OAM beams by etching a spiral zone structure directly at the surface of a zinc oxide crystal. Such diffractive optics act on the generated harmonics and produces focused optical vortices with sub-micrometric size.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Conservation of orbital angular momentum for high harmonic generation of fractional vortex beams

Shasha Li, Baifei Shen, Xiaomei Zhang, Zhigang Bu, and Weifeng Gong
Opt. Express 26(18) 23460-23470 (2018)

Fast switchable optical vortex generator based on blue phase liquid crystal fork grating

Shi-Jun Ge, Wei Ji, Guo-Xin Cui, Bing-Yan Wei, Wei Hu, and Yan-Qing Lu
Opt. Mater. Express 4(12) 2535-2541 (2014)

Asymmetric Gaussian optical vortex

Victor V. Kotlyar, Alexey A. Kovalev, and Alexey P. Porfirev
Opt. Lett. 42(1) 139-142 (2017)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription